Tool for forming necks of bottles.



Patented Apr. 3, |900. P. LINDEMEYR.

TO0L FDR FORMING NECKS 0F BDTTLES.

(Application led June 15, 1898.) (No Model.) 2 Sheets-Sheet l.

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UNITED STATES PATENT OFFICE.

IHILIP LINDEMEYR, OIF BALTIMORE, MARYLAND, ASSIGNOR, BY MESN E AS- SIGNMENTS, TO THE AMERICAN STOPPER COMPANY, OF NEW YORK, N. Y.

tool. FOR Fo-RMING NECKS `oF BOTTLES.

SPECIFICATION forming part of Letters Patent No. 646,847, dated April 3, 1900.

Application filed une 15 1898. Serial No. 683,528. (No model.)

To all whom t may concern:

Be it known that I, PHILIP LINDMEYR, `a resident of Baltimore city, in' the State of Maryland,have invented certain new and useful Improvements in Tools for Forming Necks of Bottles and Like Vessels; and I do hereby Vdeclare the following to be a full, clear, and' enact description of the invention, such as will enable others skilled in the art to which it pertains todmake and use the same.

My invention relates to tools for forming bottlenecks and the like 5 and it has for its obj ect to increase the capacities and efficiency of such tools..

In the accompanying drawings, Figure 1 is a perspective View of the tool. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is an enlarged vertical section of the same, the bow being omitted. Fig. 4 is a view in elevation of the bottle-throat former, the expander therefor being shown in position. Fig. 5 is ahorizontal section on the line 5 5 of Fig.3. Fig. 6 is a plan of the casing for the throatformer. Fig. 7 is a vertical longitudinal section of the mold-body. Fig. 8 represents a perspective anda bottom plan of the movable mold-section used to form the slot in the bottle-neck. Fig. 9 is a longitudinal section of a mold-inclosing case. Fig. 10 is a partial perspective of a detail.

Referring to the drawings, 1 denotes a spring-bow adjustably held upon a rod 2 by nuts 3. I t.

4: denotes what I term a casing for the bottle-throat former, it being a cylindrical body secured to the upper end of rod 2 by screws and enlarged at its upper end, as at 5, for a purpose hereinafter described.

6 represents the mold-body, comprising a mold 7 for the neck, having at its lower end an inwardly-projecting annular rib or flange 8 and a lrearward tubular extension 9. The mold-body 6 mediately rests upon the beveled end of the enlargement 5, which is so shaped as to receive balls 10 between it and the tubular extension 9 of the mold, a ball-retaining ring 11 preventing the displacement of the balls.

The tube 4, 'which in the present instance 5o carries the lip-former, is mediately the moldsupport, being itself supported by the rod 2, fixed to the bow. Y l.

In the wall of the body-mold 6 are formed a plurality of openings 12, each adapted to receive a movable mold-section 13 of such shape as to forni a slot of the desired contiguration in the bottle-neck. In the present instance I have illustrated the use of but three of the mold-sections, each comprising a iat body 14, having at one edge a downwardlyprojecting lug 15, the edges of the outer portion of the body of the mold-section being formed with notches 16, all as clearly shown in Fig. 8.

Within the casing 4f is what I term a bottle-throat former 17, the upper end'of which projects through and beyond the mold-body 6 and is of the proper shape for the use desired. This former is in two vertical sections, each cut out for a portion of its length, as at 18, to form a recess for a throat-former eX- pander 19, having at its upper end a wedgeshaped spreader 20, adapted when ,the expander is moved upward to force the sections of the former apart, all asy clearly shown in Fig. 4.

2l represents a sleeve loose on casing 4 and screw-threaded at its lower end to receive a collar 22, a'cone-shaped ring 23 being secured tothe sleeve above the collar.

24 represents fingers projecting laterally and upwardly from collar 22. Free ends of these lingers enter openings 25 in the ends of bow 1, as shown in Figs. 1 and 2.

26 represents the case of a size to encircle the mold, the upper end of the case iaring outwardly, as at 27. This flaring portion is formed with slots 28, situated'to embrace the mold-sections 13, the edges of the slots entering the notches 16 in the mold-sections, as clearly shown in Fig. 1. By this construction reciprocation of the case will move the mold-sections inward and outward, as will be evident. The lower end of the case is reduced in size at 29 to loosely lit sleeve 21, 95

.and annular depressions 30 are formed in the upper and lower edges of the reduced portion 29 to receive balls 31, the upper set of which is retained by an incline on the upper edge of sleeve 21 the lower set being retained IOO by the cone-shaped ring 23, as clearly shown in Figs. 2 and 3.

32 is a pin screwed into collar 22 and passing through a slotI 32' in casing 4, its end entering a hole 33 in the expanderlfl, as shown in Fig. 3, and thereby moving the expander in the operation of the tool.

34 is a coiled spring encircling rod 2, its lower end being secured to said rod and its upper end secured to collar 22, as shown in Fig. l.

In operation, the parts being assembled as above described, the bottle after it has been blown and its neck reheated is presented to the tool and pressed upon the former 17 and within the mold-body G. The bow I is then compressed, with the effect to move forward the sleeve 21, the collar 22 and ring 23 being moved with the sleeve and also the case 26. The expander I9 is also moved forward, forcing the sections of the throat-former apart. The forward movement of case 26 will force inward the mold-sections I3, forming the desired slots in the bottle-neck. In order to effectively handle the bottle and prevent loss of its shape, it must be rotated during this molding operation, and to maintain an exact relative position between the bottle and moldbody I have mounted the latter, and also the ease, upon suitable antifriction bearings above described, permitting the easy circumferential reci procation ot the parts. The throat-former, as is evident, remains stationary, forming the revolving bottle-neck into the proper shape. The enlargement 5, which constitutes the mold-bottom, also remains stationary with relation to the rotating moldbody G, with the effect to form and smooth the bottle-lip. These operations are effected immediately after the bottle-neck has been pushed to the fixed mold-bottom 5, and forced upon the rib 8, which forms an offset in the neck adjacent the lip of the bottle, finishing the molding of the neck and lip. As soon as the bow is released the mold-sections, the case, and the throat-expander are automatically retracted by spring 34, thus returning the parts to their normal positions, leaving the inierior of the mold-body Gsmooth and unbroken, permitting the withdrawal of the finished article.

The invention is applicable to the forming of the necks or tops ot' various vessels. Itis also applicable to forming transverse slots, depressions, grooves, or threads of various forms.`

Since the mold-body and bottle are rotated together, letters can be formed in different parts of the neck by suitable type situated'in the mold-body. In Fig. IO are indicated moldtype for forming letters on a shoulder of the neck by means of the shoulder-forming fiange or part S.

Having thus described my invention, what I clailn as new, and desire to secure by Letters Patent, is-

l. The combination of a rotatable mold? body, a fixed bottom therefor, the mold-body being formed with a tubular extension projecting below the xed bottom, and antifriction devices between the bottom and tubular extension, substantially as described.

2. The combination of a rotatable moldbody, a throat-former made in two independent sections, a tubular casing for the throatformer and comprising the sole support for its sections, and a fixed bottom for the moldbody formed by enlarging the end of the throat-former casing.

The combination of a rotatable moldbody, a throat-former made in two independent sections, a tubular casing for the throatformer and comprising the sole support for its sections, and a fixed bottom for the moldbody formed by enlarging the end of the throat-former casing, said mold-body being provided with an interior rib im mediatcly above the bottom.

4. A rotatable mold-body, a throat-former made in sections projecting into the moldbody, and a casing for the throat-former, said casing being interiorly formed at its lower end to bind the sections together and support them and at the upper end to permit a spreading movement of the sections.

5. In a tool for forming the necks of bottles and the like, arotatable mold-body, a bottom permanently fixed with relation to the tool, an annular rib formed on the moldbody,mold sections carried by the mold-body, and means for operating said moldsections, substantially as described.

6. In a tool for forming the necks of bottles and the like, a former for the throat of the bottle made in two independent sections, means for spreading said sections apart throughout their operative portions, and a tubular casing for the former, the interior of said casing being cylindrical at the lower end t0 bind the sections of the former together and of oval shape at the top to permit the spreading of the sections.

7. In a tool for forming the necks of bottles and the like, a rotatable mold-body, moldsections transversely movable in said body, the outer edges of the sections being formed with notches, a case iiared outwardly at its upper end, and formed with slots having edges to engage the mold-sections, said edges entering the notches in the mold-sections, and means for reciprocating the ease to operate the sections, substantially as described.

S. In combination, a rod, a casing secured to the upper end of the rod, a throat-former within the casing, a sleeve loose on the outer side of the casing, a mold -body rotatively mounted on the upper end of the formercasing, mold-sections transversely movable 'in the mold-body, a ease for operating said sections, said case being rotatively mounted on the sleeve, a springbow adjustably secured on the rod, and fingers projecting lat- IIO - mold-sections transversely movable in the mold-body, a case for operating said sections, a sleeve loose on the outer side of the formercasing, the case being rotatively mountedon the sleeve, a pin passed through the sleeve and connected with the throat-expander, and means for reciprocating the case and sleeve, whereby the mold-sections are operated and the expander is forced upward into the throatformer, substantially as described.

lO. In combination, a rotatable mold-body, mold-sections transversely movable in said body, and means for operating said sections, the mold-body being thickened at that portion through which the mold-sections operate, whereby a substantial bearing-surface for said sections is obtained.

11. In a tool for forming the necks of bottles and the like, a rotatable mold-body, said mold-body being formed with a tubular eX- tension projecting below the mold, and antifriction devices between the tubular extension and a support for the mold.

12. In a tool for forming the necks of bottles and the like, a rotatable mold-body provided with mold sections, said mold body being formed with a tubular extension projecting below the mold, a support for the mold, and antifriction devices between the tubular extension and mold-support, an endwise-movable case to move the mold-sections, and antifriction-balls between the case and the support for the mold.

13. In a tool for forming the necks of bottles, a body-mold, a bow, a throat-former projecting into the mold, a casing for the throatformer, an expander for the throat-former, a pin projecting from the expander and passing through the casing, and means intermediate the bow and pin whereby the operation of the bow reciprocates the expander.

14. In a tool for forming the necks of bottles,a rotatable mold for forming the outside of the neck in combination with expansible but non-rotatable ngers for forming the inside of the neck and forcing the metal into a mold, a mold-support, said mold having an extension, and antifriction devices intermediate the extension and the mold-support.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

PHILIP LINDEMEYR. Vitnesses:

FRANK D. BLAcKrsToNE, DAVID W. GoULD. 

